Fuel-saver and smoke-consumer.



J. L. WEBSTER. FUEL SAVER AND SMOKE CONSUMER. APPLIGATION FILED MAY 8, 1914'.

1 1 1 2, 1 79. Q Patented Sept. 29, 1914.

3 SHEETS-SHEET 1.

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J. L. WEBSTER.

FUEL SAVER AND SMOKE CONSUMER.

APPLICATION FILED MAY 8, 1914. 1,1 1 2,179 Patented Sept. 29, 1914.

3 SKEET SSHEET 2.

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THE NORRIS PETERS C0 V HOTOLITHO.. WASHINGTON, D. C.

J. L. WEBSTER.

FUEL SAVER AND SMOKE CONSUMER.

APPLICATION FILED MAY 6. 1014.

3 SHEETS-SHEET 3.

Patented Sept. 29, 1914.

L/iJL/EESTER BY W M 7HE NORRIS PETERS CO., PHOTO-IMHO. \VASIIINIIIUN, u 1

UNITED STATES PATEN OFFICE.

JOHN LINDSAY WEBSTER, or OTTAWA, ONTARIO, CANADA.

FUEL-SAVER AND SMOKE-CONSUMER.

To all whom it may concern Be it known that I, JOHN LINDSAY WEB- STER, a subject of the King of and resident of the city of Ottawa, in the Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Fuel-Savers and SmokeConsumers,,of which the following is a specification. I

This invention relates to fuel savers and smoke consumers of the type in which the products of combustion are led backwardly and forwardly beneath a boiler and then successively through separated section of tubes, and the objects of the invention are tofacilitate the draft through the tubes to produce more efficient operation of the boiler and to produce steam more readily and of higher pressure than would otherwise be possible, and it consists essentially of the unequal division of the tubes and in the position of the baille wall, all as hereinafter more fully set forth and described in the specification and drawings.

In-the drawings, Figure 1 is a sectional plan view of a steam boiler furnace embodying the present invention. Fig. 2 is a sectional front elevation. Fig. 3 is a longitudinal sectional elevation.

accompanying In the drawings like characters of refer-' ence indicate corresponding parts in all the figures. I

Referring to the drawings, A represents the boiler formed with a plurality of tubes 10 of usual construction, the boiler being supported in a masonry structure B having side walls 10 and 11 and end walls 12 and 13. r

The tubes of the boiler open into a chamber 15 at the rear end and a chamber 14: at the front end. The tubes opening into the front end of the boiler are divided into two unequal sections by means of a division plate C which extends along the top of the larger section, then down between the sections, then laterally over the clean-out door 17 to the supporting wall 18, which supporting wall extends beneath the front of the boiler Great Britain,

which also serves Specification of Letters latentf Patented 29, 1914;. Application filed May. a, 1914.

SerialNo. 837,211.

number of tubes in the section 20. The

grate 23 occupies only part of the Width of the space beneath the boiler equal to the breadthof the grate and a baflie wall 24 is provided atthe side of the grate extending rearwardly beneath the boiler, terminating a distance short of the end of the boiler and forming a through which the products of combustion may turn and pass into the tubes 21. The rear portion 27 of this battle wall is inclined slightly toward the wall '10 as shown. The products of combustion are prevented from passing directly to the rear end of thetubes in. the boiler by means of a baflle wall 28 of the boiler. The stack E is, as usual, located atthe front end of the boiler.

It will be observed that the baffle wall 2 1 is located to one side of the center whereby thepassageway 30 provided on the side nearest the wall 10 is comparatively larger than thepassageway 25. The front part of the combustion chamber 31 is filled in to near the height of the bridge wall so as to keep the flame near the surface/of the boiler. As illustrative of the amount this wall should be offset from the center of the boiler, it maybe stated that the amount of offsetting should be four inches on a fortyeight inch boiler and twelve inches on a seventy-eight inchboiler.

In theoperation of the invention, the products of combustion on the fire on the grate 23 under the normal draft of the boiler pass rearwardly' into the space 31 which forms a combustion chamber, then forwardly through the channel 25 to section 21 of the tubes, then through section 21 of the tubes to the chamber 15, then through section 20 of the section to the stack E.

It will be seen that the gases while they are hot and highly expanded will have the larger number of tubes in the section 21 to pass through, and when they have. cooled slightly they will pass through the/smaller number of tubes in the section 20. The

arrangement of the baffle 27 at one side of i the grate leaves a large area for the distribution of coal and prevents choking of the smoke and combustion gases.

To increase the combustion of the fuel, a stream of hot air is projected downwardly on the boiler grate and to this end a U-shaped pipe F is provided, the parallel arms 34 and 35 of which are built into the passageway 25 on one side.

to give support to the end side wall 10 and the baiiie wall 24, the said pipe being located above the grate and having its'bottom member 36 extending transversely across the furnace. The outer end i of the parallelmember 35 of the said U- shaped pipe terminates in a dead end while the outer end of the parallel member 34: is open and extends to the front of the end wall13. A plurality of nozzles 37 are provided and mounted "as the pipe 85, such nozzles extending through the baffle wall into the furnace and being disposed at a suitable angle to the boiler grate. embodiment illustrated the nozzles are connected to the pipe 35 by means of the T pieces 38, but this may be modified as found convenient or necessary.

In the operation of the boiler, air is supplied to the U-shaped pipe F from any suitable source, such air in the traveling through the said pipe taking up heat from the side and battle Walls and from the hot gases in the furnace, such hot air being .finally discharged through the nozzles 87 on the grate.

As many changes could be made in the above construction and many apparently widely different embodiments of my inven tion, within the scope of the claims, constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying speci-,

fication and drawings shall be interpreted as illustrative and not in a limiting sense.

What I claim as my invention is:

-1. In a steam boiler furnace and in combination, a boiler having a plurality of tubes, a masonry structure supporting the boiler formed with side and end walls and formed with chambers at opposite ends into which the tubes open, a bafiie wall prevent- In the ing the products of combustion passing directly to the rear end of the tubes, a grate and a bafile wall at the side of the grate terminating a distance short of the first said baffle wall equal to the breadth of the said grate, the front of the second said ballle wall being offset to one side of the center forming a passageway between the baflle wall and the side wall of the masonry structure, and a partition dividing the tubes at the front end into two sections, the number of tubes in the first section through which the products of combustion pass being greater than in the second section.

2. In a steam boiler furnace and in combination, a boiler having a plurality of tubes a masonry structure supporting the boiler formed with side and end walls and formed with chambers at opposite ends into which the tubes open, a battle wall preventing the products of combustion passing dire'ctly to the rear end of the tubes, a grate and a baflle wall at the side of the grate terminating a distance short of the first said battle wall equal to the breadth of the said grate, the front of the second said baille wall being offset to one side of the center forming a passageway between the battle wall and the side wall of the masonry structure, and a partition dividing the tubes at the front end into two sections, the number of tubes in the first section through which the products of combustion pass being greater than in the second section, in the proportion at least of one to one and one-quarter.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

JOHN LINDSAY WEBSTER.

Witnesses Janus MITCHELL, P. M. GARRARD.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner oi. Patents. Washington, D. 0. 

